He stated he took an interest in politics at a young age, describing himself as a "social Gaullist" and supporting the Rally for the Republic in the 1990s, as well as its successor the Union for a Popular Movement in the 2000s.

nomination for the 1st constituency of Aisne ahead of the 2017 legislative election, claiming he initially agreed with Emmanuel Macron's "concept of neither left nor right", but lost out to Aude Bono-Vandorme.

He subsequently joined the National Rally and was elected again a municipal councillor in Laon in 2020.

[1][2] For the 2022 legislative election, Dragon contested Aisne's 1st constituency for the National Rally, when he defeated Bono-Vandorme in the second round with 54.5% of the vote.

[3] He was reelected at the 2024 snap election, winning an absolute majority of the vote (57%) in the first round.